MMM-PythonPrint customisation

diemen112

i have also the MM os and i try to make it work
I have added - /usr/bin/python3:/usr/bin/python3 to the docker compose
and now i have the error

[15.07.2022 14:23.42.599] [LOG]   MMM-PythonPrint received a socket notification: CONFIG - Payload: [object Object]
[15.07.2022 14:23.42.602] [LOG]   PythonPrint spawning /opt/magic_mirror/modules/MMM-PythonPrint/print_test.py using python3
[15.07.2022 14:23.42.686] [LOG]   PythonPrint program error=Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: initfsencoding: unable to load the file system codec
ModuleNotFoundError: No module named 'encodings'

Current thread 0x76fb37a0 (most recent call first):

a played around with adding $PYTHONHOME to env but without any result
does anyone know a work around to find the libraries?

sdetweil

@diemen112 I think this answers
https://askubuntu.com/questions/905372/could-not-find-platform-independent-libraries-prefix

running under docker is a fun experience?

did u install python as part of the container startup?

karsten13

@diemen112 said in MMM-PythonPrint customisation:

I have added - /usr/bin/python3:/usr/bin/python3 to the docker compose

this will not work. You have to use the fat image, see my post above (Apr 11)

diemen112

Thank you for the help,
I made it work with adding some python dependent directory’s to the docker-compose file

kayakbabe

Sam,

Thank you for this MMM-PythonPrint. More than the sample module this really helped me follow how to wrap my head around how the script.js node_helper and anything else work together. The way you worded the variables and the input and output text really made sense and made it easy to follow what is happening. I am learning a lot. Again, Thank you.

Kelly

sdetweil

@kayakbabe awesome, glad it helped!

kayakbabe

@sdetweil I’m looking at the configuration variable repetative and trying to figure out what it is for.

is this correct logic for true and false?

repetative: true
if your python script runs in a loop forever by itself so the spawn in node helper will just keep its connection to the python script open

repetative: false
if your python script runs one time, and you need node_helper to keep spawning over and over so you can get the info from the python script over and over

sdetweil

@kayakbabe so , maybe your python script starts and runs, prints one line, and ends. current temp is x

is that all you want your module to present, one line?

or do you want the output every few seconds minutes

this is repetative:false, but my module will rerun the script every cycle time milliseconds

but some python scripts do that internally.

print, sleep, print, sleep, print, sleep, print…

this is repetative: true
my module will just start the python script

there are two different ways to capture the output

should have named parm

script_is_long_running

I provided a sample of each

also, in many cases, you are using someone else’s script and don’t have control over how it works, and don’t want to rewrite it